/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
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 */

package org.apache.kylin.softaffinity.scheduler

import org.apache.kylin.softaffinity.SoftAffinityManager

import org.apache.spark.internal.Logging
import org.apache.spark.scheduler.{SparkListener, SparkListenerExecutorAdded, SparkListenerExecutorRemoved}

class SoftAffinityListener extends SparkListener with Logging {

  override def onExecutorAdded(executorAdded: SparkListenerExecutorAdded): Unit = {
    val execId = executorAdded.executorId
    val host = executorAdded.executorInfo.executorHost
    SoftAffinityManager.handleExecutorAdded((execId, host))
  }

  override def onExecutorRemoved(executorRemoved: SparkListenerExecutorRemoved): Unit = {
    val execId = executorRemoved.executorId
    SoftAffinityManager.handleExecutorRemoved(execId)
  }
}